Difference between revisions of "Team:Valencia UPV/Circuit"
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Revision as of 01:07, 18 September 2015
After weeks squeezing our brains looking for a solution of a biological decoder we finally came out with this elegant circuit structure. Here we are going to explain you how did we get to it and why did we made each decision. First of all the idea was to create a decoder but also one capable to be used in places with low resources. This premise gave to the next decision:
This three characteristics were then our foundations for the project development. Then we started to look for the components. We looked for optogenetic tools and we found a toggle switch activable with red light and deactivated by far red and a blue light inductor which ceases its activity after a period of time in dark. This are going to be our contact breaker for input signaling. However we decided to design a novel violet/cian toggle switch in order to improve the expression control with inputs. Once the inductors were decided the circuit was structures in three levels: firs input modules, second input modules and products. This structure created two problems to face, as interrupters in the different levels are the same, when the first input is given both first and second levels would be activated. This first problem was solved creating a library of binding domains to DNA and one protein subunit of the switch and their production will be controlled by the first levels switchers. This solution avoid the undesired activation of next levels, but how to control the activation of the previous levels when the second light pulse is given? The solution for this challenge is the usage of recombinases, they will remove the sequence of the products controlled by the switch that has not been activated in the first level. Circuit Design
Figure 1. Plant, light, memory! Three characteristics, just one circuit.
Figure 2. Circuit structure
Component
Symbol
Component
Symbol
Component
Symbol
DB1-PIF6 BD3-PIF6 Product α
PhyB-VP16 BD4-LOV2 Product β
BD2-LOV2 ƟC31 Product γ
ePDZ-VP16 BD5-PIF6 Product Ω
BxB1 BD6-LOV2